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Finding the Fourth Proportional to 673,526.16, 929,464.20 and 371,718

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Solution

The fourth proportional to 673,526.16, 929,464.20 and 371,718 is: 512,969.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,526.16 : 929,464.20 = 371,718 : x
  2. Step 2: Convert to fraction form
    673,526.16/929,464.20 = 371,718/x
  3. Step 3: Cross multiply
    673,526.16x = 929,464.20 × 371,718
  4. Step 4: Simplify right side
    673,526.16x = 345,498,573,495.60
  5. Step 5: Solve for x
    x = 345,498,573,495.60/673,526.16
  6. Step 6: Final answer
    x = 512,969.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.